Abstract:
Disclosed herein are embodiments of batch-style bottom-discharge rotary debarkers for removing bark from a batch of logs in a bin and discharging debarked logs from a bottom of the bin. In some embodiments, the bin includes four walls and an opening in its bottom. In some embodiments, the debarkers include a plurality of rotors, a plurality of chutes, and a plurality of conveyor belt systems for carrying bark and logs away from the bin. In some embodiments, the debarkers include an internal gate which can be moved between a debarking configuration and an unloading configuration.
Abstract:
The present invention relates to a barking machine which comprises a frame (1), barking rotor (2), which is rotably mounted on the frame (1) and which barking rotor comprises a rotor frame (3), barking blades (4) mounted on the rotor frame (3), and a first power unit (5) mounted on the rotor frame (3) that is connected to the barking blades (T) for trnsferring the barking force into them. According to the invention in the barking rotor there is arranged an adjustment device (6) movable with respect to the rotor frame, and a second power unit (7) which is mounted on the frame (3) for transmitting the barking force via the first power unit (5) to the barking blades (4). This solution enables one to adjust the barking depth of the barking blades without stopping the barking rotor.
Abstract:
A replaceable cutting piece and a cutting arm for a debarking cutter for a debarking machine of a hollow-rotor type, which cutting piece (6) and cutting arm (4) comprise supporting surfaces and abutment surfaces for receiving loads acting on the cutting piece fastened by a retaining screw to a housing (7) formed in the cutting arm. In order to direct the loads acting on the cutting piece in full to the cutting arm instead of to the retaining screw, the cutting piece and the cutting arm comprise supporting surfaces and abutment surfaces (9a to 9d, 11a, 11b, 12a, 14a, 14b) for receiving the loads acting on the cutting piece in the direction of the axle, the radius and the tangent of the rotor and the torque caused by said loads, which surfaces are situated in perpendicular planes with respect to one another.
Abstract:
A barking method, and an apparatus for utilization of the method, in which a log (6) during a substantially linear feeding movement is brought to pass one or a number of barking means (1; 4, 4'), arranged to perform a surrounding and rotary movement in relation to the log (6). According to the invention, the barking means (1; 4, 4') are pressed into a contact position by influence from centrifugal force during a surrounding and rotary movement in relation to the log (6). The contact pressure of the barking means (1; 4, 4') is continuously variable by increasing/decreasing the rotary speed of the barking means (1; 4, 4') in relation to the log (6). The barking means (1; 4, 4') can be arranged inclined in relation to the feed direction of the log (6), in order to cause a feed movement for the log (6) in direction past the barking means (1; 4, 4').
Abstract:
The present invention relates to a barking machine which comprises a frame (1), barking rotor (2), which is rotably mounted on the frame (1) and which barking rotor comprises a rotor frame (3), barking blades (4) mounted on the rotor frame (3), and a first power unit (5) mounted on the rotor frame (3) that is connected to the barking blades (T) for transferring the barking force into them. According to the invention, in the barking rotor there is arranged an adjustment device (6) movable with respect to the rotor frame, and a second power unit (7) which is mounted on the frame (3) for transmitting the barking force via the first power unit (5) to the barking blades (4). This solution enables one to adjust the barking depth of the barking blades without stopping the barking rotor.
Abstract:
Apparatus for debarking logs including a drum mounted for rotation about an axis to define an inner drum surface. Debarking apparatus is provided on the inner surface configurable to debark logs within the drum at a first rate on rotation of the drum in a first direction and at a second rate when the drum is rotated in a second direction.
Abstract:
A debarking machine having a plurality of debarking tools spaced circumferentially around a rotor. The debarking tools are movable independently between radially inward positions and dilated positions. Movement of the debarking tools is caused by hydraulic rotary actuators, hydraulic fluid pressure being supplied to the actuators independent hydraulic accumulators, a pair of hydraulic accumulators being provided for each rotary actuator.
Abstract:
An air-seal cooling fin system in a log debarker of the type having a frame, a ring mounted for rotation on the frame, and air-pressure actuated debarking arms carried on the ring. Pressurized air is supplied to the arms through a rotary air seal composed of a stationary seal portion joined to the frame and a rotatable seal portion joined to the ring including a pair of spaced annular elements disposed on axially opposed sides of the stationary portion. Arranged on each of the annular elements in the rotatable seal portion is a circular array of angularly spaced fins. These fins act to radiate heat generated in the seal during debarker operation and interact with a circular array of fins carried on the stationary portion to create cooling air turbulence in the region of the seal.